N C Lopes
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Explore the profile of N C Lopes including associated specialties, affiliations and a list of published articles.
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Articles
12
Citations
46
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Recent Articles
1.
Poder K, Wood J, Lopes N, Cole J, Alatabi S, Backhouse M, et al.
Phys Rev Lett
. 2024 May;
132(19):195001.
PMID: 38804956
Experiments were performed on laser wakefield acceleration in the highly nonlinear regime. With laser powers P<250 TW and using an initial spot size larger than the matched spot size for...
2.
Hussein A, Senabulya N, Ma Y, Streeter M, Kettle B, Dann S, et al.
Sci Rep
. 2020 Jan;
10(1):320.
PMID: 31924797
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
3.
Kettle B, Gerstmayr E, Streeter M, Albert F, Baggott R, Bourgeois N, et al.
Phys Rev Lett
. 2020 Jan;
123(25):254801.
PMID: 31922780
Single-shot absorption measurements have been performed using the multi-keV x rays generated by a laser-wakefield accelerator. A 200 TW laser was used to drive a laser-wakefield accelerator in a mode...
4.
Hussein A, Senabulya N, Ma Y, Streeter M, Kettle B, Dann S, et al.
Sci Rep
. 2019 Mar;
9(1):3249.
PMID: 30824838
Laser-wakefield accelerators (LWFAs) are high acceleration-gradient plasma-based particle accelerators capable of producing ultra-relativistic electron beams. Within the strong focusing fields of the wakefield, accelerated electrons undergo betatron oscillations, emitting a...
5.
Wood J, Chapman D, Poder K, Lopes N, Rutherford M, White T, et al.
Sci Rep
. 2018 Jul;
8(1):11010.
PMID: 30030516
Betatron radiation from laser wakefield accelerators is an ultrashort pulsed source of hard, synchrotron-like x-ray radiation. It emanates from a centimetre scale plasma accelerator producing GeV level electron beams. In...
6.
Streeter M, Kneip S, Bloom M, Bendoyro R, Chekhlov O, Dangor A, et al.
Phys Rev Lett
. 2018 Jul;
120(25):254801.
PMID: 29979081
We report on the depletion and power amplification of the driving laser pulse in a strongly driven laser wakefield accelerator. Simultaneous measurement of the transmitted pulse energy and temporal shape...
7.
Cole J, Wood J, Lopes N, Poder K, Abel R, Alatabi S, et al.
Sci Rep
. 2015 Aug;
5:13244.
PMID: 26283308
A bright μm-sized source of hard synchrotron x-rays (critical energy Ecrit > 30 keV) based on the betatron oscillations of laser wakefield accelerated electrons has been developed. The potential of...
8.
Najmudin Z, Kneip S, Bloom M, Mangles S, Chekhlov O, Dangor A, et al.
Philos Trans A Math Phys Eng Sci
. 2014 Jan;
372(2010):20130032.
PMID: 24470414
Advances in X-ray imaging techniques have been driven by advances in novel X-ray sources. The latest fourth-generation X-ray sources can boast large photon fluxes at unprecedented brightness. However, the large...
9.
Green J, Ovchinnikov V, Evans R, Akli K, Azechi H, Beg F, et al.
Phys Rev Lett
. 2008 Feb;
100(1):015003.
PMID: 18232779
Metal foil targets were irradiated with 1 mum wavelength (lambda) laser pulses of 5 ps duration and focused intensities (I) of up to 4x10;{19} W cm;{-2}, giving values of both...
10.
Lopes N, Figueira G, Silva L, Dias J, Fonseca R, Cardoso L, et al.
Phys Rev E Stat Nonlin Soft Matter Phys
. 2003 Oct;
68(3 Pt 2):035402.
PMID: 14524825
A plasma waveguide scheme for high-intensity laser guiding with densities and lengths suitable for laser-plasma particle accelerators is presented. This scheme uses a laser-triggered high-voltage discharge, presents negligible jitter, allows...